AMD have released a double dose of goodies this time round, so let's start with the 12.1a preview driver. It includes all the features found in the 12.1 preview and has a small number of improvements for Rage, which while sounding modest, can actually improve game play significantly for systems affected by these problems. The driver applies to HD 6000 & HD 5000 series graphics cards only.

Resolves some new texture corruption issues introduced by the latest version of the game

Improved performance ~5%

Smoother game play and reduces multicore sync points

Fixed mapbuffer failures when switching maps on 32-bit systems.

Fixed a game crash when switching maps back and forth on 32 and 64-bit systems

On to the 11.12 CAP2 profiles which give us CrossFire performance improvements for Project C.A.R.S.(DX9 version) and Counter Strike: Global Offensive. AMD don't say the amount of improvement seen.

cant speak much of performance gains because ive managed a 4.2 OC so my scores went up anyways, still 2x5800's crossfired and benches ran smoothly and well my best yet, games ive tried ran well no issues batman and dirt3 tho so not many lol il look into it